【摘要】：高烈度區(qū)結構剛度一般由水平荷載控制,而在低烈度區(qū)則往往由整體穩(wěn)定決定。結構側(cè)向剛度和重力荷載是影響結構整體穩(wěn)定和P-Δ效應的主要因素,《高層建筑混凝土結構技術規(guī)程》(JGJ 3—2010)采用剛重比作為控制指標�；诮Y構樓層荷載沿豎向均勻分布,規(guī)范給出了剛重比的限值指標。對于體型復雜的高層建筑,不同建筑之間質(zhì)量沿高度分布差異很大,采用同樣的控制參數(shù),結構實際穩(wěn)定性無法保證。根據(jù)實際體型和水平荷載分布情況,引入樓層豎向荷載分布系數(shù)β,通過控制結構在風荷載和地震作用下的P-Δ效應,計算了結構合理剛重比,對規(guī)范指標進行了修正;同時根據(jù)實際荷載分布提出了任意水平荷載分布下的等效側(cè)向剛度的計算公式。
[Abstract]:The structural stiffness in high intensity zone is generally controlled by horizontal load, while in low intensity area, it is often determined by overall stability. The lateral stiffness and gravity load of the structure are the main factors affecting the overall stability and P-螖 effect of the structure. The rigid weight ratio is used as the control index in the Technical Specification for High-rise Building concrete structures (JGJ 3 鈮，

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